Portland Trail Blazers forward LaMarcus Aldridge, right, looks for room to maneuver against San Antonio Spurs forward Tiago Splitter, from Brazil, during the first half of an NBA basketball game in Portland, Ore., Saturday, Nov. 2, 2013. less

Portland Trail Blazers forward LaMarcus Aldridge, right, looks for room to maneuver against San Antonio Spurs forward Tiago Splitter, from Brazil, during the first half of an NBA basketball game in Portland, ... more

Photo: Don Ryan, Associated Press

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House of horrors wreaks havoc again in Portland

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PORTLAND, Ore. — Nicolas Batum rose up from 25 feet almost absentmindedly, firing up a buzzer-beating 3-pointer in a game that had long since been decided in his Portland Trail Blazers team's favor.

Much to Batum's horror, the shot went in.

"I was like, 'Oh no,' " Portland's small forward said after the Blazers dusted the Spurs 115-105 on Saturday night at the Moda Center.

It was bad form to be sure, the basketball equivalent of throwing a Hail Mary in a game already won. But it also defined the Blazers' night against the Spurs, and their last several nights against them.

Even the shots they didn't want to go in went in.

Behind 25 points, seven assists and seven rebounds from reigning Rookie of the Year Damian Lillard, 24 points from perennial Spurs slayer LaMarcus Aldridge and 20 from Wesley Matthews, the Blazers won their home opener for the 13th season in a row.

That they did it at the Spurs' expense should come to the surprise of absolutely nobody.

Saturday's loss was the Spurs' 13th in the last 18 games against the Blazers, and the ninth in their last 10 visits to the arena formerly known as the Rose Garden.

"It's been that way all my career, I don't know what it is," said Spurs forward Tim Duncan, who returned from a chest contusion to score 24 points and collect seven rebounds. "They have good energy here. Those guys seem to play well against us."